Pierre Deransart – författare

This book is the first one entirely devoted to the topic of constraint debugging; it presents new approaches to debugging for the computational paradigm of constraint programming. The book is based on the European research project DiSCiPl. It consists of an introduction and three parts, each of them composed of several chapters. The introduction presents the DiSCiPl debugging methodology and explains how the technical chapters are related. The three parts on correctness debugging, performance debugging, and user cases offer a total of 13 consistenly written chapters.

Attribute Grammars have turned into one of the most fundamental formalisms of modern Computer Science. Since 1968 when Knuth introduced the basic concepts, they have been the subject of a very large amount of literature, proving the importance of the area and the broad range of its applications. The aim of the book is to put at the disposal of researchers and students, but also of engineers interested in applications, the most important definitions and results known to date in this youthful domain. This seemed best achieved by a survey including three parts: 1) A state-of-the-art review of the main results and of the most promising research directions: this part aims at being both an aid for the reader in understanding the bibliography, by presenting the results using a unified vocabulary together with numerous pointers to the literature, and also an incitement to go into further results and research areas. 2) A presentation of most of the systems dealing with Attribute Grammars: the main interest in this part lays in the presentation of the implementation choices and of the applications.This part is the "practical" side of the book, emphasizing the point of view of "design" which can outline the differences between a theoretical idea and the way it can be implemented. 3) A bibliography including about 600 titles on the domain, together with a thematic index enabling readers to find their way easily in accordance with their own points of intereSt.

The aim of the workshop was to discuss whether research on implementation of programming languages and research on logic programming can mutually benefit from each others results. The intention was to bring together researchers from both fields, especially those working in the area of their intersection. Problems such as formal specification of compilers and syntax-based editors, program analysis and program optimization have been traditionally studied by implementors of algorithmic languages and have resulted in a number of well-established notions, formalisms and techniques. At the same time, an increasing number of people use logic programming as a way of specifying compilers or other programming environment tools, taking advantage of the relatively high level of logic programming and the growing efficiency of Prolog implementations. On the other hand, research on logic programming raises the questions of analysis of logic programs and their optimization. These are motivated primarily by compiler construction for logic programs, by studies on the methodology of logic programming and by the attempts to amalgamate logic programming and functional programming. The purpose of the workshop is to review the techniques developed in one (or both) of the fields which could also be of some help in the other one and to facilitate the transfer of expertise. It seems important to compare notions used in both fields: showing similarities between them may prevent rediscovering results already known, while studying differences may contribute to the transfer of technology.

This volume consists of the papers accepted for presentation at the second international workshop on Programming Language Implementation and Logic Programming (PLILP '90) held in Linköping, Sweden, August 20-22, 1990. The aim of the workshop was to identify concepts and techniques used both in implementation of programming languages, regardless of the underlying programming paradigm, and in logic programming. The intention was to bring together researchers working in these fields. The volume includes 26 selected papers falling into two categories. Papers in the first category present certain ideas from the point of view of a particular class of programming languages, or even a particular language. The ideas presented seem to be applicable in other classes of languages. Papers in the second category directly address the problem of integration of various programming paradigms. The proceedings of the predecessor workshop PLILP '88, held in Orléans, France, May 16-18, 1988, are available as Lecture Notes in Computer Science, Vol. 348.

Attribute grammars were introduced over twenty years ago, but they are still not as widely used as could have been hoped initially. This is particularly so in industry, despite their qualities as a specification tool. The aim of this International Workshop on Attribute Grammars and their Applications (WAGA), the first to be entirely devoted to this topic, was to show that they are still the subject of active research and now lead to important, useful and practical applications in various areas. The workshop covered all aspects of attribute grammars, with an emphasis on practical results. This volume includes the text of the three invited talks and 21 submitted papers presented at the workshop. This selection provides a wide view of the diverse research being done in the area. Topics include: - Fundamentals: efficient exhaustive and incremental at- tribute evaluation methods, parallel evaluation, space optimization, relationships with functional, logic and object-oriented programming, and systems. - Applications: compiler construction, natural language processing, and interactive program manipulation.